The answer to 'dryer vent odor' is that a foul smell coming from your dryer vent is usually caused by a buildup of lint, debris, or moisture in the vent. This can lead to mold, mildew, and unpleasant odors. Common symptoms include a musty smell, visible lint or debris around the vent, and reduced airflow from the dryer.
To solve the problem, you'll first want to inspect and clean the dryer vent. Start by disconnecting the vent from the back of the dryer and using a vent brush or vacuum hose to remove any lint or debris. You may also need to use a dryer vent cleaning rod to reach deeper into the vent. If the odor persists after cleaning, it could indicate a more serious issue like a clogged or damaged vent that may require professional repair.